I an extra axis of movement was part of what people used it for. Still that aside although it is a great bit of kit - but turning my head whilst keeping my eyes on the screen just didn't feel right to me.
Full immersion vr headsets (+a vr glove or two) are definitely the way to go for the future (and possibly by the time ED is launched).
Is that what you felt you had to do? Weird. I was worried I'd have to train myself to turn my head while keeping my eyes on the screen, but it didn't work out that way at all. For example, if I wanted to look behind my aircraft to the left, I'd simply look at the left hand of the screen (by turning my head to look) and I'd be looking at my tail (looking behind without turning your neck would feel weird anyway). Look a little less left and I'd be looking out over the left wing. The same fluidity applied to looking up and down - keeping an eye on an enemy that would usually be out of sight is a complete gamechanger. At no point did I have to do anything that felt unnatural, like having to keep my eyes on the screen while my head went in another direction.
Sure, full immersion vr headsets would be better - but from my point of view I already have Track IR, so I wouldn't have to shell out any more money and for those who don't have Track IR, there are apparently tools out there that can turn a simple Webcam into a Track IR.